SINGCALL Wireless Calling System Wireless Pager Calling System, Restaurant Paging Systems,Rechargeable Waterproof Watch Receiver APE6900

* 01. Waterproof. (It can be put into 3.3ft (1.0m) deep water, then it still can work for more than 30 minutes.) * 02. Has calendar, clock and alarm clock function. Rechargeable battery, super standby time (about 5 days). * 03. With fast delete function, it can delete one registered number or all registered numbers with only one key. * 04. Can download the registration information by charged software, makes the registration easier. * 05. With encryption function, avoiding the information lost by mistake operation. 06. OLED screen, thinner, lighter and more flexible anti-seismic and knock.